Ultrasonic cutter
By setting up an extended arm and an axial adjustment mechanism on the ultrasonic tool, the problem of insufficient surgical field of view is solved, and the expansion of surgical field of view and safety is achieved, especially in minimally invasive surgery, the convenience of observation and operation is improved.
Patent Information
- Application Number
- CN202421839376.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-07-31
AI Technical Summary
Existing ultrasound tools lack structure to enlarge the surgical field of view when removing lesion tissue, especially in minimally invasive surgery, which reduces the safety of surgery.
An ultrasonic tool is designed, by providing the first and second expansion arms on the clamp arm, and adopting an axial adjustment mechanism, including a threaded sleeve and a latch structure, slidingly fitting the limiting long hole, the axial movement of the adjustment tube, the swing of the expansion arms, and enlarging the surgical field of view.
It expands the surgical field, improves the safety of the surgery, facilitates medical staff to observe the resection process, and enhances the reliability and safety of the surgery.
Smart Images
Figure CN223183587U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ultrasonic cutters, in particular to an ultrasonic cutter. Background Art
[0002] Ultrasonic tools refer to ultrasonic surgical knives, also known as ultrasonic scalpels. The transducer device converts electrical energy from the main unit into mechanical energy, enabling the blade in the ultrasonic tool to vibrate at an ultrasonic frequency of 55.5KHz.
[0003] Currently, see Figure 1 The ultrasonic cutter comprises a cutter bar 1, an inner cannula 2, an outer cannula 3, and a clamp arm 4. The inner cannula 2 is sheathed on the outside of the cutter bar 1, which is sheathed on the outside of the inner cannula 2. The lower end of the clamp arm 4 is rotatably connected to the outer cannula 3 via a rotating shaft 41, while the upper end of the clamp arm 4 is connected to the inner cannula 2. When the inner cannula 2 moves axially, it drives the clamp arm 4 to rotate about the rotating shaft 41, allowing the clamp arm 4 to swing toward or away from the cutter bar 1.
[0004] When removing diseased tissue, first, the forceps arm is driven to swing toward the direction close to the knife rod, so that the forceps arm and the knife rod clamp the diseased tissue; then, the diseased tissue is removed through the high-frequency mechanical vibration of the knife rod and the pressure of the forceps arm.
[0005] During the process of removing diseased tissue, the clamp arm and the blade rod in the ultrasonic tool work together to clamp the diseased tissue. There is no other structure on the ultrasonic tool to increase the surgical field of view. Especially in minimally invasive surgery, instruments such as endoscopes are not convenient for observing the surrounding conditions during the removal process, which reduces the safety of the operation. Utility Model Content
[0006] In view of the above-mentioned deficiencies in the prior art, the present invention proposes an ultrasonic cutter. The present invention can expand the surgical field of view and is conducive to improving surgical safety.
[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0008] An ultrasonic tool comprises a tool rod, an inner sleeve, an outer sleeve, a clamp arm, an adjustment tube, an axial adjustment mechanism, a support, and a first extension arm. The outer portion of the tool rod is provided with an inner sleeve, the outer portion of the inner sleeve is provided with an outer sleeve, the upper portion of the tail end of the clamp arm is rotatably connected to the outer sleeve via a rotating shaft, the lower portion of the tail end of the clamp arm is connected to the inner sleeve, the adjustment tube is sleeved on the outside of the outer sleeve, the axial adjustment mechanism is used to adjust the axial position of the adjustment tube, the support is provided on the outer wall of the outer sleeve, the support is provided with a sliding pin, the first extension arm is provided on the side of the clamp arm away from the tool rod, the first extension arm is provided with a limiting long hole, the sliding pin and the limiting long hole are slidably matched, the limiting long hole includes a straight section and an inclined section, the inclined section is provided at the tail end of the first extension arm, and the tail end of the first extension arm is rotatably connected to the adjustment tube.
[0009] Furthermore, it also includes a second extension arm, which is arranged on the side of the knife rod away from the clamp arm. The second extension arm is also provided with the limiting long hole, and the tail end of the second extension arm is rotatably connected to the adjustment tube.
[0010] Furthermore, the axial adjustment mechanism includes a threaded sleeve, the head end of the threaded sleeve is provided with a rotation groove, the outer wall of the outer sleeve is provided with an external thread, the external thread is threadedly connected to the threaded sleeve, and the tail end of the adjustment tube is provided with a limiting ring, which rotates with the rotation groove.
[0011] Furthermore, the axial adjustment mechanism includes a latch, a baffle, and an elastic member. A baffle is provided on the upper part of the latch, and the baffle is connected to the outer wall of the adjustment tube through the elastic member. A through hole is provided on the adjustment tube, and a plurality of slots are provided on the outer wall of the outer sleeve. All the slots are distributed along the axial direction of the outer sleeve, and the latch is plugged into and matched with the through hole and the slot in turn.
[0012] Furthermore, a pull ring is provided at the top end of the latch.
[0013] Furthermore, the elastic member is a spring, which is sleeved on the outside of the latch.
[0014] The utility model has the beneficial effects:
[0015] 1. During the process of removing the diseased tissue, the first expansion arm can increase the distance between the diseased tissue and other surrounding tissues, thereby expanding the surgical field of view and making it easier for medical staff to use endoscopes and other detection instruments to observe the surrounding conditions during the removal process, which is beneficial to improving surgical safety.
[0016] 2. Because the sliding pin moves first in the straight section and then in the inclined section, the first extension arm first moves axially to the left and then swings upward, so that the first extension arm can be smoothly inserted between the forceps arm and other surrounding tissues above the forceps arm, which can effectively separate the forceps arm and other surrounding tissues above the forceps arm, ensuring reliability when expanding the surgical field of view.
[0017] 3. By adding a second expansion arm, the second expansion arm can be used together with the first expansion arm to further expand the surgical field of view during the process of removing the diseased tissue, making it easier for medical staff to observe the removal of the diseased tissue, which is conducive to further improving the safety of the operation.
[0018] 4. The two axial adjustment mechanisms provided by the utility model have simple structures, are convenient for adjusting the axial position of the adjustment tube, and are easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural diagram of background technology;
[0020] Figure 2 A schematic diagram of the structure of an ultrasonic tool Figure 1 ;
[0021] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;
[0022] Figure 4 A schematic diagram of the structure of an ultrasonic tool Figure 2 ;
[0023] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;
[0024] Figure 6 It is a local structure of ultrasonic tool Figure 1 ;
[0025] Figure 7 It is a local structure of ultrasonic tool Figure 2 ;
[0026] Figure 8 It is a local structure of ultrasonic tool Figure 3 ;
[0027] Figure 9 It is a top view of the local structure of an ultrasonic tool;
[0028] Figure 10 This is a main view of the local structure of an ultrasonic tool;
[0029] Figure 11 is a perspective view of a first extension arm;
[0030] Figure 12 is a front view of the first extension arm;
[0031] Figure 13 yes Figure 10 Instructions for use Figure 1 ;
[0032] Figure 14 yes Figure 10 Instructions for use Figure 2 .
[0033] Description of reference numerals:
[0034] 1- Tool bar,
[0035] 2-inner sleeve, 21-driving long hole,
[0036] 3-outer sleeve, 31-external thread, 32-slot,
[0037] 4- Clamp arm, 41- Rotating shaft, 42- Driving pin,
[0038] 5-adjusting tube, 51-limiting ring, 52-through hole,
[0039] 61-threaded sleeve, 611-rotating groove, 62-latch pin, 63-baffle, 64-elastic member, 65-pull ring,
[0040] 7-support, 71-slide pin,
[0041] 8- First extension arm,
[0042] 9- Second extension arm,
[0043] 101-straight section, 102-inclined section,
[0044] a-lesioned tissue, b-surrounding tissues. DETAILED DESCRIPTION
[0045] To better understand the present invention, the present invention is further described below with reference to the accompanying drawings. It is worth noting that in the description of the present invention, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are used solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention.
[0046] Example 1:
[0047] See also Figures 2 to 14 An ultrasonic tool includes a tool rod 1, an inner sleeve 2, an outer sleeve 3, a clamp arm 4, an adjustment tube 5, an axial adjustment mechanism, a support 7, and a first expansion arm 8.
[0048] See also Figure 7 The inner sleeve 2 is sleeved on the outside of the knife rod 1.
[0049] See also Figure 7 The outer sleeve 3 is sleeved on the outside of the inner sleeve 2.
[0050] See also Figure 6 The upper end of the tail end of the clamp arm 4 is rotatably connected to the head end of the outer sleeve 3 through the rotating shaft 41. Figure 7 、 Figure 8 、 Figure 10 A driving pin 42 is mounted at the lower end of the rear end of the clamp arm 4. The driving pin 42 slidably engages with the driving slot 21 provided at the front end of the inner sleeve 2. When the inner sleeve 2 moves axially, the clamp arm 4 is driven to rotate about the rotating shaft 41, thereby allowing the clamp arm 4 to swing toward or away from the knife bar 1.
[0051] See also Figure 10 The adjusting tube 5 is sleeved on the outside of the outer sleeve 3.
[0052] The axial adjustment mechanism is used to adjust the axial position of the adjustment tube 5. This embodiment 1 provides two structural forms of the axial adjustment mechanism.
[0053] See also Figure 3 The first axial adjustment mechanism includes a threaded sleeve 61 with a rotation groove 611 at its head end. The outer wall of the outer sleeve 3 is provided with external threads 31, which are threadedly connected to the threaded sleeve 61. A limit ring 51 is installed at the tail end of the adjustment tube 5, which rotates in engagement with the rotation groove 611.
[0054] See also Figure 5 The second axial adjustment mechanism includes a latch 62, a baffle 63, an elastic member 64, and a pull ring 65. The baffle 63 is installed on the upper part of the latch 62. The baffle 63 is connected to the outer wall of the adjustment tube 5 through the elastic member 64. The elastic member 64 is a spring, which is sleeved on the outside of the latch 62. Under the elastic force of the spring, the baffle 63 moves closer to the outer wall of the adjustment tube 5. The pull ring 65 is installed on the top of the latch 62. The adjustment tube 5 is provided with a through hole 52. The outer wall of the outer sleeve 3 is provided with a plurality of slots 32, all of which are distributed along the axial direction of the outer sleeve 3. The latch 62 is plugged into and matched with the through hole 52 and the slots 32 in sequence.
[0055] See also Figure 10 The support 7 is installed on the outer wall of the outer sleeve 3, and a sliding pin 71 is installed on the support 7.
[0056] See also Figure 10 、 Figure 11 、 Figure 12 The first extension arm 8 is located on the side of the caliper arm 4 facing away from the shank 1. A stopper hole is provided on the first extension arm 8, and a sliding pin 71 slidably engages with the stopper hole. The stopper hole includes a straight section 101 and an inclined section 102. The inclined section 102 is located at the rear end of the first extension arm 8, which is rotatably connected to the adjustment tube 5.
[0057] The working principle of this embodiment 1 is as follows:
[0058] (1) When removing the diseased tissue a:
[0059] ①. Drive the inner sleeve rod axially to the right, and the inner sleeve rod pulls the lower end of the clamp arm 4 to move to the right. The clamp arm 4 rotates counterclockwise around the rotating shaft 41. During this process, the driving pin 42 adaptively slides down in the driving long hole 21, causing the clamp arm 4 to swing toward the direction close to the knife rod 1, so that the clamp arm 4 and the knife rod 1 clamp the diseased tissue a.
[0060] ②. Drive the regulating tube 5 to move axially to the left, so that the sliding pin 71 first slides in the straight section 101 and then slides in the inclined section 102. Figure 13 When the sliding pin 71 slides in the straight section 101, the first extension arm 8 moves axially to the left; see Figure 14 When the sliding pin 71 slides in the inclined section 102, the first expansion arm 8 swings upward, so that the distance between the surrounding other tissues b located on the upper side of the first expansion arm 8 and the diseased tissue a is further expanded.
[0061] ③. The diseased tissue a is removed through the high-frequency mechanical vibration of the knife rod 1 and the pressure of the forceps arm 4.
[0062] During the process of removing the diseased tissue a, because the first extension arm 8 increases the distance between the diseased tissue a and other surrounding tissues b, the surgical field of view is expanded, making it convenient for medical staff to use endoscopes and other detection instruments to observe the surrounding conditions during the removal process, which is conducive to improving surgical safety.
[0063] Moreover, because the sliding pin 71 first moves in the straight section 101 and then moves in the inclined section 102, the first extension arm 8 first moves axially to the left and then swings upward, so that the first extension arm 8 can be smoothly inserted between the clamp arm 4 and the surrounding other tissues b above the clamp arm 4, which can effectively separate the clamp arm 4 and the surrounding other tissues b above the clamp arm 4, ensuring reliability when expanding the surgical field of view.
[0064] (2) When the first axial adjustment mechanism drives the adjustment tube 5 to move axially:
[0065] When the threaded sleeve 61 is screwed clockwise, the threaded sleeve 61 drives the adjusting tube 5 to move axially to the right. During this process, because the rotating groove 611 on the threaded sleeve 61 rotates with the limiting ring 51 on the adjusting tube 5, the adjusting tube 5 will not be subjected to tangential force, so that the adjusting tube 5 will not rotate with the threaded sleeve 61, and the adjusting tube 5 can only move axially.
[0066] When the threaded sleeve 61 is screwed counterclockwise, the threaded sleeve 61 drives the adjusting tube 5 to move axially to the left.
[0067] When the screwing of the threaded sleeve 61 stops, the axial position adjustment of the adjusting tube 5 is completed.
[0068] (3) When the second axial adjustment mechanism drives the adjustment tube 5 to move axially:
[0069] First, pull the pull ring 65 outward so that the pin 62 overcomes the elastic force of the elastic member 64 and moves outward. When the pin 62 is pushed out of the slot 32, the adjusting tube 5 is moved axially. When the adjusting tube 5 moves to the desired position, release the pull ring 65 so that the pin 62 is reset and inserted into the slot 32 under the elastic force of the elastic member 64, thereby stabilizing the current position of the adjusting tube 5.
[0070] Example 2:
[0071] This embodiment 2 is further improved on the basis of embodiment 1:
[0072] See also Figure 10 The ultrasonic tool of embodiment 2 also includes a second extension arm 9, which is arranged on the side of the knife rod 1 away from the clamp arm 4. The second extension arm 9 is also provided with a limiting long hole, and the tail end of the second extension arm 9 is rotatably connected to the adjustment tube 5.
[0073] The working principle of this embodiment 2 is as follows:
[0074] When removing the diseased tissue a:
[0075] ①. Drive the inner sleeve rod axially to the right, and the inner sleeve rod pulls the lower end of the clamp arm 4 to move to the right. The clamp arm 4 rotates counterclockwise around the rotating shaft 41. During this process, the driving pin 42 adaptively slides down in the driving long hole 21, causing the clamp arm 4 to swing toward the direction close to the knife rod 1, so that the clamp arm 4 and the knife rod 1 clamp the diseased tissue a.
[0076] ②. Drive the regulating tube 5 to move axially to the left, so that the sliding pin 71 first slides in the straight section 101 and then slides in the inclined section 102. Figure 13 When the sliding pin 71 slides in the straight section 101, the first extension arm 8 and the second extension arm 9 move to the left together; see Figure 14 When the sliding pin 71 slides in the inclined section 102, the first extension arm 8 swings upward and the second extension arm 9 swings downward, so that the distance between the surrounding other tissues b located on the upper side of the first extension arm 8 and the diseased tissue a is further expanded, and the distance between the surrounding other tissues b located on the lower side of the second extension arm 9 and the diseased tissue a is further expanded.
[0077] ③. The diseased tissue a is removed through the high-frequency mechanical vibration of the knife rod 1 and the pressure of the forceps arm 4.
[0078] During the process of resecting the diseased tissue a, because the first expansion arm 8 and the second expansion arm 9 can increase the distance between the diseased tissue a and other surrounding tissues b, the second expansion arm 9 can further expand the surgical field of view together with the first expansion arm 8, further facilitating medical staff to observe the resection of the diseased tissue a, which is conducive to further improving the safety of the operation.
[0079] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims
1. An ultrasonic tool, comprising a knife bar, an inner sleeve, an outer sleeve, and a clamp arm, wherein the outer sleeve is provided on the outer portion of the inner sleeve, the upper portion of the tail end of the clamp arm is rotatably connected to the outer sleeve via a rotating shaft, and the lower portion of the tail end of the clamp arm is connected to the inner sleeve, characterized in that: It also includes an adjusting tube, an axial adjusting mechanism, a support, and a first extension arm. The adjusting tube is sleeved on the outside of the outer sleeve. The axial adjusting mechanism is used to adjust the axial position of the adjusting tube. The support is provided on the outer wall of the outer sleeve. A sliding pin is provided on the support. The first extension arm is provided on the side of the clamp arm away from the knife rod. A limiting long hole is provided on the first extension arm. The sliding pin slides in cooperation with the limiting long hole. The limiting long hole includes a straight section and an inclined section. The inclined section is provided at the tail end of the first extension arm. The tail end of the first extension arm is rotatably connected to the adjusting tube.
2. The ultrasonic tool according to claim 1, characterized in that: It also includes a second extension arm, which is arranged on the side of the knife rod away from the clamp arm. The second extension arm is also provided with the limiting long hole, and the tail end of the second extension arm is rotatably connected to the adjustment tube.
3. An ultrasonic tool according to claim 1 or 2, characterized in that: The axial adjustment mechanism includes a threaded sleeve, a rotation groove is provided at the head end of the threaded sleeve, an outer wall of the outer sleeve is provided with an external thread, the external thread is threadedly connected to the threaded sleeve, and a limiting ring is provided at the tail end of the adjustment tube, which rotates in conjunction with the rotation groove.
4. An ultrasonic tool according to claim 1 or 2, characterized in that: The axial adjustment mechanism includes a latch, a baffle, and an elastic member. A baffle is provided on the upper part of the latch, and the baffle is connected to the outer wall of the adjustment tube through the elastic member. A through hole is provided on the adjustment tube, and a plurality of slots are provided on the outer wall of the outer sleeve. All the slots are distributed along the axial direction of the outer sleeve, and the latch is plugged into and matched with the through holes and the slots in sequence.
5. The ultrasonic tool according to claim 4, characterized in that: A pull ring is provided on the top end of the latch.
6. The ultrasonic tool according to claim 4, characterized in that: The elastic member is a spring, which is sleeved on the outside of the latch.